如何解决 sinonJS 存根？

Question

所以我正在尝试使用 SinonJS 存根请求。在每次测试之前，它应该使用已解析的假信息来模拟请求，但它似乎没有按预期工作。尝试用 Promise.resolve 解决，但它也没有像我预期的那样工作。

测试代码如下：

describe("Store | Users actions", () => {
  let commit = null;
  let page = 1;
  let itemsPerPage = 2;

  const users_response = {
    status: 200,
    data: [{
      "id": 1,
      "name": "Leanne Graham",
      "username": "Bret",
      "email": "Sincere@april.biz"
    },
    {
      "id": 2,
      "name": "Ervin Howell",
      "username": "Antonette",
      "email": "Shanna@melissa.tv"
    }]
  };

  beforeEach(() => {
    commit = sinon.spy();
    sinon
      .stub(api.users, "list").resolves();
  });

  afterEach(() => {
    api.users.list.restore();
  });

  it("should list users", () => {
    users.actions.list({ commit }, { page, itemsPerPage });
    expect(commit).to.have.been.calledWith("UNSET_ERROR");
    expect(commit).to.have.been.calledWith("GET_PAGINATED", users_response);
  });
});

这是我遇到的错误：

  1) Store | Users actions
       should list users:
     AssertionError: expected spy to have been called with arguments GET_PAGINATED, {
  data: [{ email: "Sincere@april.biz", id: 1, name: "Leanne Graham", username: "Bret" }, { email: "Shanna@melissa.tv", id: 2, name: "Ervin Howell", username: "Antonette" }],
  status: 200
}
"UNSET_ERROR" "GET_PAGINATED"
{
  data: [{ email: "Sincere@april.biz", id: 1, name: "Leanne Graham", username: "Bret" }, { email: "Shanna@melissa.tv", id: 2, name: "Ervin Howell", username: "Antonette" }],
  status: 200
}
      at Context.<anonymous> (dist/js/webpack:/tests/unit/store/users.spec.js:184:1)

list({ commit }, { page, itemsPerPage, sort, search }) {
      commit("UNSET_ERROR");

      return api.users
        .list(page, itemsPerPage, sort, search)
        .then((users) => commit("GET_PAGINATED", users.data))
        .catch((error) => commit("SET_ERROR", error));
    }

我在这里做错了什么？非常感谢任何帮助。

编辑：添加列表功能

Answer 1

那是因为你的第二个提交函数调用是在 Promise then 方法中。

您需要等待 users.actions.list()。

例如：

  beforeEach(() => {
    commit = sinon.spy();
    // Note: add users_response here.
    sinon.stub(api.users, "list").resolves(users_response);
  });

  // Use async here.
  it("should list users", async () => {
    // Use await here.
    await users.actions.list({ commit }, { page, itemsPerPage });
    expect(commit).to.have.been.calledWith("UNSET_ERROR");
    // Note: expect with property data, because called with: users.data.
    expect(commit).to.have.been.calledWith("GET_PAGINATED", users_response.data);
  });

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